Patents by Inventor Shuhei Matsubara

Shuhei Matsubara has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11965228
    Abstract: The resistive material for sensing current contains: metal particles selected from a group consisting of nichrome, copper-manganese, and copper-nickel; insulating particles selected from a group consisting of alumina, aluminum nitride, silicon nitride, and zirconia; and titanium oxide.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: April 23, 2024
    Assignee: KOA Corporation
    Inventors: Shuhei Matsubara, Keishi Nakamura
  • Patent number: 11842830
    Abstract: A shunt resistor 10, 110 includes a flat resistive element 11; a first electrode block 12 that is made of a conductive metal material and is laminated on a lower surface 11a of the resistive element 11; and a second electrode block 13, 113 that is made of a conductive metal material and is laminated on an upper surface 11b of the resistive element 11, in which the second electrode block 13, 113 is a block body including an electrode portion 14 connected to the resistive element 11 and an extension portion 15, 115 extending downward from a side surface of the electrode portion 14.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: December 12, 2023
    Assignee: KOA Corporation
    Inventors: Susumu Toyoda, Shuhei Matsubara, Keishi Nakamura
  • Publication number: 20230333143
    Abstract: The present invention relates to a jumper element, a shunt resistor apparatus, and a method of adjusting characteristic of a shunt resistor apparatus for current detection. The jumper element (10) for constituting the shunt resistor apparatus for current detection is made of conductive metal material. The jumper element (10) includes: a body structure (11) that can be coupled to a resistance element (5) constituting a part of the shunt resistor apparatus; and a protrusion (12) formed on a side portion of the body structure (11), wherein the protrusion (12) is located so as not to overlap the resistor element (5).
    Type: Application
    Filed: August 11, 2021
    Publication date: October 19, 2023
    Applicant: KOA CORPORATION
    Inventors: Koichi HIRASAWA, Shuhei MATSUBARA, Katsuhide NISHIZAWA, Keishi NAKAMURA
  • Publication number: 20230140922
    Abstract: The mounting area for an electronic component and a resistor for current detection is reduced. A current detection resistor for detecting current includes a plate-like resistive body, and a first electrode and an opposite second electrode which are stacked in a thickness direction of the resistive body and are disposed so as to sandwich the resistive body. The first electrode has a groove portion.
    Type: Application
    Filed: April 1, 2021
    Publication date: May 11, 2023
    Inventors: Susumu TOYODA, Keishi NAKAMURA, Shuhei MATSUBARA
  • Patent number: 11495374
    Abstract: A resistive material for sensing current contains particles having an electrically insulating property and a metal body having a three-dimensional network enclosing the particles, and a ratio of the metal body to the whole of the resistive material is 30 vol % or more and 80 vol % or less.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: November 8, 2022
    Assignee: KOA Corporation
    Inventors: Shuhei Matsubara, Keishi Nakamura
  • Publication number: 20220157497
    Abstract: The resistive material for sensing current contains: metal particles selected from a group consisting of nichrome, copper-manganese, and copper-nickel; insulating particles selected from a group consisting of alumina, aluminum nitride, silicon nitride, and zirconia; and titanium oxide.
    Type: Application
    Filed: March 3, 2020
    Publication date: May 19, 2022
    Inventors: Shuhei Matsubara, Keishi Nakamura
  • Publication number: 20220148769
    Abstract: A shunt resistor 10, 110 includes a flat resistive element 11; a first electrode block 12 that is made of a conductive metal material and is laminated on a lower surface 11a of the resistive element 11; and a second electrode block 13, 113 that is made of a conductive metal material and is laminated on an upper surface 11b of the resistive element 11, in which the second electrode block 13, 113 is a block body including an electrode portion 14 connected to the resistive element 11 and an extension portion 15, 115 extending downward from a side surface of the electrode portion 14.
    Type: Application
    Filed: March 3, 2020
    Publication date: May 12, 2022
    Inventors: Susumu Toyoda, Shuhei Matsubara, Keishi Nakamura
  • Patent number: 11282621
    Abstract: A resistor according to the present disclosure includes an insulated substrate, a resistive layer formed of a resistance body material and a bonding layer for bonding the insulated substrate and the resistive layer, wherein the resistor is configured so that a ratio of a sheet resistance of the bonding layer to a sheet resistance of the resistive layer is 100 or more.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: March 22, 2022
    Assignee: KOA CORPORATION
    Inventors: Shuhei Matsubara, Keishi Nakamura
  • Publication number: 20210304925
    Abstract: A resistive material for sensing current contains particles having an electrically insulating property and a metal body having a three-dimensional network enclosing the particles, and a ratio of the metal body to the whole of the resistive material is 30 vol % or more and 80 vol % or less.
    Type: Application
    Filed: August 2, 2019
    Publication date: September 30, 2021
    Inventors: Shuhei Matsubara, Keishi Nakamura
  • Publication number: 20210225562
    Abstract: A resistor according to the present disclosure includes an insulated substrate, a resistive layer formed of a resistance body material and a bonding layer for bonding the insulated substrate and the resistive layer, wherein the resistor is configured so that a ratio of a sheet resistance of the bonding layer to a sheet resistance of the resistive layer is 100 or more.
    Type: Application
    Filed: June 21, 2019
    Publication date: July 22, 2021
    Inventors: Shuhei Matsubara, Keishi Nakamura